*mydirectindustry

Catalogs
NEWALL
Linear Encoder Brochure

Linear Encoder Brochure

Product catalog summary

Overview: The document provides a detailed overview of Newall's linear encoders, focusing on incremental, absolute, and distance-coded models. These encoders utilize Spherosyn technology for precise position measurement through electromagnetic induction.

Incremental Encoders: These encoders generate quadrature square wave or sine-cosine feedback signals, ideal for servo-driven applications. They operate by producing a 10kHz sinusoidal current, with phase shifts processed by a DSP to create a differential quadrature signal.

Absolute Encoders: Newall's absolute encoders deliver true position data immediately upon power-up without batteries or static memory. They use a stainless steel tube with nickel-chrome elements and coded inserts, with data processed by a DSP.

Distance-Coded Encoders: These encoders acquire absolute position by moving across two uniquely spaced reference markers, mimicking distance-coded index marks from glass scales.

Company Profile: Newall, founded in 1968 in Peterborough, England, is a subsidiary of BEI Technologies Inc., part of Schneider Electric. The company specializes in automation and machine tool technologies, exporting over 85% of its products globally. It is ISO 9001 certified and received the Queen's Award for Export Achievement in 1998.

Technical Specifications: The document details specifications for various encoder models, including IP67 protection ratings, accuracy grades, maximum traverse speeds, and shock/vibration tolerances. The encoders are designed for harsh environments and require no maintenance.

Encoder Selection Guide: This guide outlines factors for selecting the appropriate encoder, such as precision level, spatial limitations, measuring length, resolution, and output signal. It includes model codes for different applications.

Installation and Operation: The MAG encoder features a flexible tape scale for easy installation on uneven surfaces, with a reader head converting magnetic fields into electrical signals. The document explains the operation principle and reference marks.

Specifications:

Encoder Types: Includes Incremental (TT, TC, TS, VM, VP/VV, VS) and Absolute (A2, A4, AB, AF, AG, AS) encoders.
Output Signals: Various signal types such as TTL, RS422 differential quadrature, RS232, RS485, SSI-Binary, SSI-Gray, and Fanuc protocol.
Accuracy and Resolution: Accuracy grades range from +/-5 to +/-25 µm/m, with resolutions from 0.1 to 10 µm.
Power Supply: Typically 5VDC with varying current requirements depending on the model.
Environmental Specifications: Operating temperature range is 0 to 55ºC, with IP67 ingress protection.

Procedures and Connections:

Encoder Connections: Detailed pin configurations for different encoder models, including RS232, RS485, and SSI connections.
Installation Guidelines: Instructions for installing the encoder reader-head within specified tolerances relative to the scale axis.

Standards and Compliance:

EMC Compliance: Adheres to standards such as BS EN 50081-2 & BS EN 50082-2.
Shock and Vibration Resistance: Encoders are tested to withstand specific shock and vibration levels as per IEC standards.

Recommendations:

Cable Lengths: For distances greater than 22m, factory consultation is recommended.
Use of Converters: SCC-100 and SCC-200 converters are suggested for specific output signal types.

Key Data from Tables and Diagrams:

Signal Connection Tables: Provide detailed pin assignments for various encoder outputs.
Technical Diagrams: Illustrate dimensions and installation requirements for different encoder models.

Specifications:

Ingress Protection: IP67 (NEMA 6)
Operating Temperature: 0 to 55ºC (32 to 131ºF)
Storage Temperature: -20 to 70ºC (-4 to 158ºF)
Magnetic Field Susceptibility: 5mT (50 Gauss)
Radiated Magnetic Field: 9mT (90 Gauss) @ 0.6mm
Overall Cross-section: 24 x 26mm (1 x 1 in)
Scale Material: Rubber and steel
Coefficient of Expansion: 16ppm/deg.K
Maximum Scale Travel: 32m (1260 in)
Cable: 9 core screened cable with PUR cover, 0.5m length
EMC Compliance: BS EN 50081-2 & BS EN 50082-2

Options:

Cable Armour: Fully interlocked stainless steel armour
Connector: IP67 (NEMA 6)

Signal and Electrical Details:

Converter Type: SCC-100 and SCC-200
Output Signals: Sinusoidal voltage signals ~1Vpp, 11µApp
Power Requirements: 5V +/- 5%, 290mA for SCC-100, 300mA for SCC-200
Signal Levels: Amplitude ratio 0.95 to 1.05, Phase angle 90º ± 5º elec

Environmental and Performance Features:

Shock and Vibration Tolerance: 1000m/s2 (100g) shock, 300m/s2 (30g) vibration
Slew Rate: Up to 20 metres/second for TTL output, 60 metres/second for Absolute version
Reliability: No regular cleaning or maintenance required
Ease of Installation: Simple and forgiving, no need for machined surfaces or backing bars
Accuracy and Calibration: Calibrated to UK national standards, traceable to NPL standard

Mounting Kits:

SHG Readerhead and Scale Mounting Kits available
MHG Readerhead and Scale Mounting Kits available

Catalog excerpts

Signal Connection Table ConnectorD Type 15 pin -A2 RS232 -A4 RS485 -AB &AG SSI-Gray SSI Binary -AS Gray and Parity -AV SSI &~1Vpp 1 SSI CLK SSI CLK 2 PC PC 3 RS232 TX RS232 TX 4 RM RM RM RM 5 B B B B 6 A A A A 7 RS232 RX RS232 RX Please refer to table on Page 23 for Connection Details via SCC200 8 +5VDC +5VDC +5VDC +5VDC 9 SSI CLK SSI CLK 10 RS485 SSI DATA SSI DATA 11 RS485 SSI DATA SSI DATA 12 RM RM RM RM 13 B B B B 14 A A A A 15 OV OV OV Blank connections are not implemented and are to be left unconnected. Signal Connection Table for Fanuc Serial Absolute ConnectorPCR - E20FS HONDA -AF Fanuc...

Open the catalog to page 7

SHG-TT,VV,VM,& VP SHG-TS,&VS Type Inductive Inductive Output signal TTL,RS422 Differential quadrature TTL,RS422 Differential quadrature Accuracy grade (m/m) +/-10 (+/-0.0004 in) +/-10 (+/-0.0004 in) Resolutions (յm) 1 (0.00005 in) 1 (0.00005 in) Reference type Periodic Single Reference location Every 12.7mm (0.5in) User select 1 from 8 Period of output (SCC-100 option) VV &VM 20m with converter Period of output (SCC-200 option) VP 20յm with converter 20m with converter VSmodel only Maximum traverse rate 2MHz (2m/s at 1յm resolution) 2MHz (2m/s at 1m resolution) Maximum Acc./ Dec. 100g / 980m/s...

Open the catalog to page 8

SHG-TC SHG-AF,AG,AB,AS,AV,A2,A4 Type Inductive Inductive AF = Fanuc,AG = SSI Gray,AB = SSI Binary,AS = SSI Gray &Parity,AV = SSI and ~1Vpp,A2 = RS232,A4 = RS485 Output signal TTL,RS422 Differential quadrature Accuracy grade (m/m) +/-5 (+/- 0.0002 in) +/-5 (+/- 0.0002 in) Resolutions (յm) 1 (0.00005 in) 1 (0.00005 in) Reference type Distance-coded None Reference location Max 20mm movement (0.8 in) 10mm movement except -AF &-AV No RM Period of output (SCC-200 option) 20m with converter (-AV) 20յm with converter Maximum traverse rate 8MHz (8m/s at 1m resolution) 30m/s Maximum Acc./ Dec. 100g / 980m/s...

Open the catalog to page 9

MAG-TT,MAG-TS Type Magnetic tape Output signal TTL,RS422 Differential quadrature Accuracy grade (m/m) +/- 25յm + (20m/m) (+/- 0.001 in) Resolutions (յm) 10 (0.0005 in) Reference type Single Reference location User select Maximum traverse rate 4m/s Maximum Acc./ Dec. 100g / 980m/s (head moving) > Offset3 (0.12є)Roll<5єRide height0.8 (0.03) Max.Pitch<Ա5 43Ա0.1 Power supply 5VDC +/- 5% < 200mA Processing latency Not applicable Shock (11ms) 100g / 980m/s > 2 (IEC 69-2-6) Vibration (55-2000Hz) 30g / 294m/s > 2 (IEC68-2-27) Optional Backing Bar for scalemounting available on request Ingress protection...

Open the catalog to page 11

Connectors &CableConnectors &Cable12 Pin Connector (IP67,NEMA 6) 9 Pin D Connector (IP54,NEMA 3) Extension Cables There is a selection of extension cables available for the range of encoders.Therefore a cable selection guide has been devised to ensure youcan purchase exactly which product you need. Please specify one option per section as required Section Option Option Description Pin A B C D Colour Orange White White Yellow Extension cable digital ELD Prefix applicable for all digital extension cables Colour Pin Function Function N/C (or 0V) 0V 0V Channel A Connector readerhead end 09D0 9 pin...

Open the catalog to page 13

Newall Measurement Systems Ltd.Technology Gateway,Cornwall Road,South Wigston,Leicester,LE18 4XH,UK TEL +44 (0) 116 264 2730 > FAX +44 (0) 116 264 2731 Օ > E-MAIL [email protected] > WEB www.newall.co.ukNewall Electronics Inc.,1778 Dividend Drive,Columbus,OH 43228,USA > TEL +1 614 771 0213 Օ > FAX +1 614 771 0219 > E-MAIL [email protected] Օ > WEB www.newall.com > 023-80740-UK November 2005 size="-3">

Open the catalog to page 15

All NEWALL catalogs and technical brochures

Archived catalogs

Digital Readout Systems Brochure
8 Pages